We really like the lake boats, and like all mass transit, they are covered by our swiss rail pass, so no ticket required. The boat cuts smoothly across the glassy water.
It's not long...maybe 20 minutes...when the pile of rock, the Chateau de Chillon, comes into view.
We spend almost 2 hours wandering around. We took the audio guide which is very good, and gives us some background on the Duke of Savoy who lived here, and built many additions on the original 12th century castle.
After the castle, we hopped on the bus and headed into Vevey for lunch.